Lifting bracket re- re-moved and bolt
WARNING! ONLY TECHNICAL STAFF WITH THE NECESSARY EXPERIENCE AND KNOWLEDGE, WITH REGARD TO THE POWER SUPPLY SUPPORT SYSTEM
AND ITS BATTERIES, MAY PERFORM THE COMMISSIONING. IT IS IMPORTANT TO FOLLOW ALL SAFETY REGULATIONS.
Commissioning 7-3
Document number: 036285.fm Revision: B
Commissioning
7.4 Commissioning procedure
1. Remove the covers and check that all connections are made according to the installation drawing.
Verify that all connections are properly tightened with sufficient torque.
2. Ensure load and battery MCB breakers are set to OFF position - ensuring the load and battery strings are connected.
3. Ensure all rectifier modules are removed. If not, remove each one in turn starting from the rightmost position.
4. Check the battery polarity with the Multimeter (3½ Digit, 0·1% dc). Place the positive lead of the meter to the plus-bus bar, and the negative lead to the battery breaker. The meter must now show a positive voltage. If the voltage is negative, change over the connection of the blue and black battery cables to the batteries.
5. Turn on the AC mains voltage.
6. Measure the AC voltage on the AC terminal block, between phases and neutral. The correct value is approximately 230V. If the value is different, check the AC connection.
7. Plug in all rectifier modules, starting from the leftmost position. Make sure to fasten the rectifiers again. The rectifiers will turn on automatically.
8. Set load breakers into "1" (ON) position.
9. Verify right polarity on battery connection by measuring the voltage drop across battery breaker(s) (Normally not more than 5V DC)
10. Green LED on controller should blink for approximately 20 sec.
11. Output voltage will increase slowly to U1.
12. Turn battery breaker to "1" ("on") position.
13. If any alarms are present, they should be reset in accordance with "Show alarms" in product description controller.
14. The system should now be without alarms.
15. Attach all the system covers in their correct places.
16. Check that all changes to drawings, if any have been completed.
17. Clean the site.
18. Fill in the commissioning record (see end of chapter).
7.5 Test of output voltage
7.5.1 Float charge (U1)
Be sure that the controller is operating.
Connect load, approx. 50% of total capacity, to the system.
Check the voltage according to the battery manufactures requirements. If the batteries require other float charging voltage, adjust the output voltage from the controller. (See product description controller) If nothing else is required, use the following values:
7.5.2 Adjustment of float charge, U1
Output voltage is factory pre-set to: See Appendix B. The total voltage has to be in accordance to the number of battery cells.
Please verify number of cells and the battery manufacturers requirements.
Adjust output voltage from the control unit.
Note! A sealing protects the potentiometer in the subrack. Do not break the seal.
7.5.3 Boost charging (U2) (if applicable)
Open lead-acid batteries.
Automatic boost charging - calculation of the time the battery voltage has been below certain levels.
Automatic activating of boost charging for this calculated time multiplied by a (boost) factor.
Activate boost charging from the "Set/select U1-U4" menu in the control unit.
Return to float charge manually by selecting "U1", or automatically after a pre-set time.
Sealed lead-acid batteries.
Most of the manufactures of sealed lead acid batteries do not recommend boost charging. If this type of battery is used, the boost function should be disabled.
Boost charging figures
Observe and write down all of the boost charging figures.
Parameters to be read/set/adjusted from control unit or PC with PowCom1 installed.
Battery type Float charge Boost charge
Open lead-acid batteries 2,23V/Cell 2,33V/Cell Sealed lead-acid batteries 2,27V/Cell
-Table 7-1
1. Communication program for remote control of the power supply system.
Commissioning 7-5
Document number: 036285.fm Revision: B
Commissioning
7.6 Battery supervision
For systems with symmetry cables supplied:
Set number of battery strings according to number of battery strings in the system. The settings are to be made in the control unit via a PC with PowCom installed or directly in the controller (if symmetry failure is indicated).
The symmetry fault alarm is to be simulated by pulling out one symmetry cable from battery string. Measure that setting to make sure that it is in accordance with battery manufacturer recommendations.
For systems with temp. probe cable supplied:
The temperature compensation is factory pre-set. Check that the temp. probe is activated and verify that the compensation level is according to the battery manufacturers requirements. (If no compensation level is available from the battery manufacture, Power One recommends it to be set to 0,5V).
7.7 Battery test
The settings should be made according to the battery manufacturer requirements, but as a rule of thumb the following settings can be used for standard VR lead batteries:
No. of test pr. year = 2
U3 Test = 1,9 V/cell
End voltage b.test = 1,94V/cell
Batt. test time = 40% of expected backup time Ah limit for test = 40% of nominal battery capacity
Parameters to be set/adjusted from the controller (Battery test menu) or "Supervision - Set parameters”
menu in PowCom.
7.8 Commissioning record
This is a step-by-step commissioning record for easy commissioning of Power-One Supply Systems. Do not continue if any faults occur during this commissioning. The checkpoints are to be considered as a minimum for commissioning of the system.
Table 7-2 Commissioning record
Checked (D)
Result
1. Check that rack is levelled
2. Check that all breakers are turned to “off”
position and that no rectifiers are mounted in the subrack(s).
3. Connect AC, and measure voltage on the mains input connections in the cabinet, Is to be 230V AC (Measure 230V from phase to N when 400V mains input is used)
L1-N:………..V AC L2-N:...V AC L3-N:...V AC 4. Mount rest of the rectifiers
5. After connection of battery, verify right polarity by measuring the voltage drop across the battery breakers (normally not more than 5V DC).
6. Check float charge, U1, and boost charge, U2. Is to be adjusted according to the battery manufacture requirements.
U1:……..V DC U2:...V DC 7. Check temperature compensation. Is to be
adjusted according to the battery manufacture requirements.
Check temperature read off compare to the room temperature.
Comp. :…….V/10oC Read off:………oC
8. Check symmetry measurement and set number of battery strings according to actually supervised battery strings in the system.
Number: ….
Alarm limit:……
9. Check alarm transmission by running an alarm test.